Do Iron Supplements Affect Periods?

If you're one of those women who, when menstruating, experience iron deficiency due to blood loss, you could experience health issues such as fatigue, weakness, and anemia.

Because of this, many women turn to iron supplements to ensure that they are meeting their daily iron requirements. But can this affect your menstrual cycle and periods?

In this article, we will explore the relationship between iron supplements and menstrual health. We will review the latest research on the topic, discuss potential side effects, and provide guidance on best practices for taking iron supplements during your period.

By the end of this article, you will have a better understanding of how iron supplements can impact your menstrual cycle and what you can do to maintain optimal menstrual health.

We'll also introduce you to our pioneering iron supplement which is helping many women find optimum iron levels without the side-affects of conventional supplements.

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How Iron Supplements Can Impact Your Menstrual Cycle

Iron supplements can have both positive and negative impacts on your menstrual cycle.

On the positive side, iron supplements can help improve the overall health of your reproductive system. Iron is essential for the production of hemoglobin, a protein in red blood cells that carries oxygen to tissues throughout the body, including the uterus.

When your body lacks sufficient iron, your blood may not be able to carry enough oxygen to your uterus, which can lead to abnormal menstrual bleeding, including heavy or prolonged periods.

In addition, iron supplements can help reduce the symptoms of premenstrual syndrome (PMS), such as mood swings, irritability, and fatigue. Studies have shown that women who take iron supplements experience a significant reduction in these symptoms compared to those who do not.

However, there can also be negative impacts of iron supplements on your menstrual cycle. Some women may experience gastrointestinal side effects, such as nausea, constipation, or diarrhea, which can affect the absorption of iron and lead to iron deficiency.

This can be avoided entirely by switching to our revolutionary Nano Iron liquid, which causes no gastrointestinal issues of any kind.

What Research Says About Iron and Periods

While iron supplements can help improve menstrual flow in women with iron deficiency or anemia, they can also have potential side effects on menstrual flow.

These side effects can include changes in menstrual flow, such as heavier or lighter periods, as well as changes in the duration or timing of menstrual periods.

Some women may experience gastrointestinal side effects, such as nausea, constipation, or diarrhea, which can affect the absorption of iron and lead to iron deficiency.

In addition, taking excessive amounts of iron supplements can result in iron overload, a condition in which the body stores too much iron, which can cause organ damage and other health problems.

It is important to note that any changes in menstrual flow or other side effects should be discussed with a healthcare professional. They can help determine if the changes are related to iron supplementation or if there may be other underlying health issues that need to be addressed.

Adjusting the dosage or frequency of iron supplements may also be necessary to reduce side effects and optimize menstrual health.

Best Practices for Taking Iron Supplements During Your Period 

  1. Choose a high-quality iron supplement: Nano Iron is a type of iron supplement that has smaller particle sizes, which allows for better absorption by the body. It is far less likely to cause gastrointestinal side effects, such as nausea or constipation, which are common with other forms of iron supplements. In fact, most users experience zero side affects at all, in addition to high bioavailability. It is a tasteless, odourless liquid.

  2. Take conventional iron supplements only with food: If you're taking old fashioned iron supplements always do so with food to improve absorption and reduce the risk of gastrointestinal side effects. Foods that are high in vitamin C, such as citrus fruits and tomatoes, can also enhance iron absorption. Of course, if you're using Nano Iron the opposite applies and you should have an empty stomach!

  3. Avoid taking iron supplements with dairy or caffeine: Dairy products and caffeine can interfere with the absorption of iron, so it's best to avoid taking iron supplements with these types of foods or beverages.

  4. Stick to a consistent schedule: Taking iron supplements at the same time each day can help ensure that you're getting a consistent amount of iron in your system. This can also help reduce the risk of gastrointestinal side effects.


  1. Journal of Obstetrics and Gynaecology. (2006). Iron supplementation and its effect on menstruation. Retrieved from
  2. The American Journal of Obstetrics and Gynecology. (2002). Iron Supplementation Increases Menstrual Blood Loss: A Randomized Controlled Trial. Retrieved from